Select Pulse Length; Select Bearing Display Mode [Azi Mode] - JRC JMA-9922-6XA Instruction Manual

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Select Pulse Length･･････････････････････････････････････
Place the cursor over the
The transmission pulse length can be changed over in three levels (『
『 LP』) every time the [PL] switch is pressed. The selected pulse length is indicated at the
upper left of the radar display. The pulse length can be changed only when the range is set to one
of 0.75, 1.5, 3, and 6 and 12NM. If 『
small targets clearer. If 『
increases, making small targets larger with higher definition.
Select Bearing Display Mode [AZI MODE]･･････････････････
The bearing presentation mode is changed over in the order of [NORTH UP] (true bearing), [HEAD
UP] (relative bearing), and [COURSE UP] (course-up bearing) mode every time the [AZI MODE]
switch is pressed. When the currently selected mode is North-up or Course-up, it will be changed
over to Head-up by pressing this switch, and to another mode by pressing this switch once again.
(Example) RM H UP→PM N UP→RM C UP→RM H UP
The Bearing Mode [NORTH UP]
The video is displayed so that the zenith of the PPI (0° on range rings) points to the
due north. Fixed targets do not flicker and are easily identified on a chart, and the
true bearing of a target can readily be read out.
Relative Bearing Mode [HEAD UP]
The video is displayed so that the ship's heading line points to the zenith of the PPI
(0° on range rings). Since targets are displayed in their directions relative to the
ship's heading line, the operator can watch the video in the same field of view as in
operating the ship at sea.
This mode is suitable for ocean sailing and for watching over other ships.
SP , and left-click.
SP』 is selected, the range resolution increases, making
LP』 is selected, the range resolution decreases, but the sensitivity
H UP
N UP
C UP
3-48
SP』, 『 MP』, and
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